20402942 is an even 8-digits composite number following 20402941
and preceding 20402943 . In scientific notation, it is written as 2.0402942 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 8744112 positive integers (up to 20402942) that are relatively prime to 20402942.
20402942 has 8 divisors, whose sum is 34976496
The reverse of 20402942 is 24920402
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million four hundred two thousand nine hundred forty-two
Scientific notation
2.0402942 × 10^7
Engineering notation
2.0402942 × 10^6
Prime Factorization
2 × 7 × 1457353
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20402942
Product of the distinct prime numbers
The prime factorization of 20402942 is 2 × 7 × 1457353.
Since it has a total of 3 prime factors.
10 , 3 , 15 , 63 , 617 , 795 , 5014 , 8366 , 27759 , 94201 , 580577 , 668430 , 7314049 , 6813003 , 31318948 , 34404987 , 969715029 , 759934552 , 1713583956 , 9026147197
n×2
40805884
n×3
61208826
n×4
81611768
n×5
102014710
n÷2
10201471
n÷3
6800980.6666667
n÷3
5100735.5
n÷5
4080588.4
n2
416280042255364
n3
8.4933375578937E+21
n4
1.7328907358013E+29
n5
3.5356069174891E+36
2 √n
4516.9615893873
3 √n
273.25257611593
4 √n
67.208344641029
5 √n
28.96933720409
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20402941
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20402942 can be divided by 8 positive divisors.
The sum of these divisors (counting 20402942) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101001011111110
3
Ternary
1102101120120112
4
Quaternary
1031311023332
5
Quinary
20210343232
6
Senary
2005150022
8
Octal
115651376
10
Decimal
20402942
12
Duodecimal
69bb312
16
Hexadecimal
13752fe
20
Vigesimal
67a772
36
Base36
c5b0e
md5
aa599b3d87458019012ec3c5cc3b14fc
sha1
0d541a439707dcee97804e37c491f5abe02fce26
sha256
c50c8c17303888e2b5aa586d1cdad0f55c0a9fdb7d490aae2e817b42cc0c1313
sha512
de32de36e2d81e1d2bdc14a647b0303335eee0ff20b64cb0601b43d2632424a878434712502fc09f24b0c526b81420404e23a632361aad4404504a95824d3442
ripemd-160
348d28c9531129e258956fac3ece92a3e8a051e7
Diameter
40805884
Circumference
128195465.39764
Area
1.3077823225855E+15
Volume
3.557680916845E+22
Surface area
5.231129290342E+15
Circumference
128195465.39764
Perimeter
81611768
Area
416280042255364
Diagonal
28854117.288712
Surface area
2497680253532184
Volume
8.4933375578937E+21
Space diagonal
35338932.167881
Perimeter
61208826
Area
1.802545458408E+14
Altitude
17669466.08394
Surface area
1.802545458408E+14
Volume
1.0009494303488E+21
Height
9618039.0962372